The Racing Beat Mini Power Pulse Presilencer is designed specifically to replace the Heat Exchanger on 1979-1980 RX-7s to either provide a quieter exhaust with a more pleasant character or because the original Heat Exchanger has failed. This presilencer ...

The Racing Beat Power Pulse Presilencer for the 1971-78 & 81-83 RX-7 is designed to be used with our wide selection of RX-7 Streetable Headers to complete a bolt-on configuration. These Power Pulse Presilencers are ideal for those individuals wanting ...

The Racing Beat Power Pulse Presilencer for the 1984-85 RX-7 12A engine (w/manual transmission) is designed to be used with our wide selection of RX-7 Streetable Headers to complete a bolt-on configuration. When used along with a Racing Beat header, this ...

The Racing Beat Power Pulse Presilencer for the 1984-85 RX-7 12A engine (w/auto transmission) is designed to be used with our wide selection of RX-7 Streetable Headers to complete a bolt-on configuration. When used along with a Racing Beat header, this ...

The Racing Beat Power Pulse Presilencer for the 1984-85 RX-7 GSL-SE (13B 6-Port engine is designed to be used with our wide selection of RX-7 Streetable Headers to complete a bolt-on configuration. When used along with a Racing Beat header, this ...